1.
Hansen. V. Henry Rees: British Ports and Shipping. George G. Harrap & Company, Ltd. London 1958. 14X21 cm. 304 s. 18 sh. gt [Internet]. 1. januar 1960 [henvist 10. april 2021];59. Tilg├Žngelig hos: https://tidsskrift.dk/geografisktidsskrift/article/view/46581